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GB1517037A - Mine shoring - Google Patents

Mine shoring

Info

Publication number
GB1517037A
GB1517037A GB4698775A GB4698775A GB1517037A GB 1517037 A GB1517037 A GB 1517037A GB 4698775 A GB4698775 A GB 4698775A GB 4698775 A GB4698775 A GB 4698775A GB 1517037 A GB1517037 A GB 1517037A
Authority
GB
United Kingdom
Prior art keywords
flanges
prop
welded
members
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4698775A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hayden Nilos Conflow Ltd
Original Assignee
Hayden Nilos Conflow Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayden Nilos Conflow Ltd filed Critical Hayden Nilos Conflow Ltd
Priority to GB4698775A priority Critical patent/GB1517037A/en
Publication of GB1517037A publication Critical patent/GB1517037A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/22—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Tents Or Canopies (AREA)

Abstract

1517037 Yielding mine roof supports HAYDEN NILOS CONFLOW Ltd 14 Nov 1975 46987/75 Heading E1E A yielding support of the type in which the lower end of the web of an H-section prop 5 is engaged by a U-shaped expandable deformable element 9 with a tubular cross section, comprises a pair of upright channel members 1 facing each other with their flanges 2 spaced apart, and rigidly connected by members 3 spaced from the flanges 2, to accommodate the web 6 and flanges 4 of the prop 5, and each channel member 1 is provided with a plate 7, welded between its flanges 2, having a corrugation 8 forming a constriction through which the expandable deformable element 9 is forced as the prop 5 settles. Tabs 11, 12 act as guides for the prop 5. The connecting members 3 comprise U-shaped bars closed by a cross bar welded thereto. A base plate 13 is welded across the base of the channel members.
GB4698775A 1975-11-14 1975-11-14 Mine shoring Expired GB1517037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4698775A GB1517037A (en) 1975-11-14 1975-11-14 Mine shoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4698775A GB1517037A (en) 1975-11-14 1975-11-14 Mine shoring

Publications (1)

Publication Number Publication Date
GB1517037A true GB1517037A (en) 1978-07-05

Family

ID=10443309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4698775A Expired GB1517037A (en) 1975-11-14 1975-11-14 Mine shoring

Country Status (1)

Country Link
GB (1) GB1517037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400994A (en) * 1991-01-22 1995-03-28 Dyckerhoff & Widmann Ag Of Munich Yieldable roof support system
GB2353544A (en) * 1999-08-24 2001-02-28 Cleveland Rockbolt Company Mining roof support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400994A (en) * 1991-01-22 1995-03-28 Dyckerhoff & Widmann Ag Of Munich Yieldable roof support system
GB2353544A (en) * 1999-08-24 2001-02-28 Cleveland Rockbolt Company Mining roof support

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee